thx Terry and Stirling
I think that this Draw type is not common.This example belongs to my customer and for this purpose complex that is less losses.
If I'm not mistaken, should polygon with take apart.
when i import this Draw to Sheetcam ,It can be confusing ,And to spread to Mark(my mean is S number). this is master problem.
Many of my customers are men selfish and want to have slight losses but I think that is not logical.
Please guide.
Amir